Infusion support capable of automatically maintaining liquid level height

By designing an infusion stand that automatically maintains the fluid level, and utilizing an adjusting mechanism and a traction rope spring mechanism, the problem of the fluid level decreasing as the fluid decreases is solved, achieving stability of the fluid level and control of water pressure. This is suitable for the needs of multi-bag infusion in orthopedic laparoscopic surgery.

CN224251867UActive Publication Date: 2026-05-19TAIZHOU ENZE MEDICAL CENT GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU ENZE MEDICAL CENT GROUP
Filing Date
2023-08-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During orthopedic laparoscopic surgery, the level of the saline solution hanging in the patient decreases as the fluid volume drops, leading to unstable water pressure and affecting the surgical outcome.

Method used

Design an infusion stand that automatically maintains the liquid level, including a movable base, a support cylinder, and a mounting cylinder. Utilizing an adjusting component and an automatic liquid level maintenance mechanism, the liquid level inside a 3-liter bag is kept stable through the cooperation of a traction rope and a spring.

Benefits of technology

It achieves stability of fluid level height when fluid volume decreases, reduces water pressure fluctuations, ensures stability of the surgical procedure, and can simultaneously suspend multiple 3-liter bags for infusion.

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Abstract

The utility model discloses an infusion support capable of automatically maintaining the height of a liquid level, and relates to the technical field of infusion supports. The device comprises a movable base, and the top of the base is fixedly connected with a supporting cylinder. The supporting cylinder and the mounting cylinder are arranged at the top of the movable base, the adjusting piece is arranged between the supporting cylinder and the mounting cylinder, the movable blocks, the hooks and the three-liter bag are arranged on the outer side of the mounting cylinder in an annular array, and the automatic liquid level height maintaining mechanism is arranged in the mounting cylinder. The three-liter bag can be driven to slowly move upwards, so that the height of the liquid level in the three-liter bag is kept in a relatively stable state, it is guaranteed that water pressure fluctuates in a small range, the influence is reduced, in addition, the height of the installation cylinder can be adjusted according to the actual situation, personnel can conveniently take and replace the three-liter bag, and the infusion support can be used for hanging a plurality of three-liter bags at the same time. And the internal liquid level height is kept stable, and the device is very worthy of popularization and application.
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Description

Technical Field

[0001] This utility model relates to the field of infusion stand technology, specifically to an infusion stand that automatically maintains the liquid level. Background Technology

[0002] Infusion, or large-volume injection, refers to a large-dose injection administered intravenously, with a single dose exceeding 100ml. It is a branch of injectable drugs and is usually packaged in 3-liter glass or plastic bags or pouches. It does not contain antibacterial agents. During use, the drip rate is adjusted by an infusion set to continuously and stably deliver the medication into the body. Currently, commonly used medical pendants and infusion stands are connected by support arms.

[0003] In orthopedic laparoscopic surgery, patients need to receive a large amount of saline solution. As the volume of fluid decreases, the saline solution level gradually drops, creating a pressure difference that makes it impossible to maintain the water pressure within a small range, which can even affect the surgery. Therefore, it is necessary to design an infusion stand that automatically maintains the fluid level to solve this problem. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] An infusion stand for automatically maintaining liquid level includes a movable base, a support cylinder fixedly connected to the top of the base, an installation cylinder slidably connected inside the support cylinder, an adjusting element between the support cylinder and the installation cylinder, a ring array of movable blocks on the outside of the installation cylinder, a hook fixedly connected to the bottom of the movable blocks, a 3-liter bag at the bottom of the hook, and an automatic liquid level maintenance mechanism inside the installation cylinder.

[0006] Furthermore, the automatic liquid level maintenance mechanism includes a mounting column fixedly connected to the upper side inside the mounting cylinder, a fixed pulley fixedly connected to the middle of the mounting column, a traction rope slidably connected to the axle of the fixed pulley, one end of the traction rope located outside the mounting cylinder being fixedly connected to the movable block, and the other end being fixedly connected to a spring, the end of the spring away from the traction rope being fixedly connected to the inner bottom of the mounting cylinder.

[0007] Furthermore, a ring array of sleeves is fixedly connected to the inner bottom of the mounting cylinder, and the spring is located inside the sleeves.

[0008] Furthermore, a collar is fixedly connected to the top of the 3-liter bag, and the collar is suspended on the hook.

[0009] Furthermore, the adjusting component includes adjusting holes equidistantly arranged on the side wall of the support cylinder, and a mounting hole is formed at the bottom of the outer wall of the mounting cylinder. An adjusting screw is threadedly connected to the inside of the mounting hole, and the adjusting screw is threadedly connected to the adjusting hole.

[0010] Furthermore, the sidewall of the mounting cylinder is constructed with an annular array of mounting grooves, and the movable block is slidably connected within the mounting grooves.

[0011] Furthermore, the side wall of the mounting cylinder is provided with a through hole corresponding to the position of the traction rope.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model features a support cylinder and a mounting cylinder on the top of a movable base. An adjustable component is provided between the support cylinder and the mounting cylinder. The outer side of the mounting cylinder has a ring-shaped array of movable blocks, hooks, and a 3-liter bag. The interior of the mounting cylinder is equipped with an automatic liquid level maintenance mechanism. When the liquid volume in the 3-liter bag slowly decreases, it can slowly move the 3-liter bag upwards, thereby maintaining the liquid level in the 3-liter bag in a relatively stable state, ensuring that the water pressure fluctuates within a small range and reducing its impact. In addition, the height of the mounting cylinder can be adjusted according to actual conditions, making it convenient for personnel to pick up and replace the 3-liter bag. This infusion stand can also hang multiple 3-liter bags simultaneously and maintain a stable internal liquid level, making it highly worthy of widespread application. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional structural schematic diagram and an enlarged view of point A of this utility model;

[0016] Figure 3 This is a three-dimensional sectional view of the adjusting component of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the automatic liquid level maintenance mechanism of this utility model.

[0018] Reference numerals in the attached drawings: 1. Base; 2. Support cylinder; 3. Mounting cylinder; 4. Adjusting component; 401. Adjusting hole; 402. Mounting hole; 403. Adjusting screw; 5. Movable block; 6. Hook; 7. 3-liter bag; 8. Automatic liquid level maintenance mechanism; 801. Mounting column; 802. Fixed pulley; 803. Traction rope; 804. Spring; 9. Sleeve; 10. Collar; 11. Mounting groove; 12. Through hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] This application provides an infusion stand that automatically maintains the liquid level, mainly to solve the problem of failing to maintain the liquid level when the liquid volume decreases, and provides the following technical solution, which will be combined with... Figures 1-4 Please provide a detailed explanation:

[0021] An infusion stand for automatically maintaining liquid level includes a movable base 1, a support cylinder 2 fixedly connected to the top of the base 1, an installation cylinder 3 slidably connected inside the support cylinder 2, an adjusting element 4 between the support cylinder 2 and the installation cylinder 3, a ring array of movable blocks 5 on the outside of the installation cylinder 3, a hook 6 fixedly connected to the bottom of the movable blocks 5, a 3-liter bag 7 at the bottom of the hook 6, and an automatic liquid level maintenance mechanism 8 inside the installation cylinder 3.

[0022] In some embodiments, a support cylinder 2 and an installation cylinder 3 are provided on the top of a movable base 1. An adjusting member 4 is provided between the support cylinder 2 and the installation cylinder 3. An annular array of movable blocks 5, hooks 6, and 3-liter bags 7 are provided on the outside of the installation cylinder 3. An automatic liquid level maintenance mechanism 8 is provided inside the installation cylinder 3. When the liquid volume in the 3-liter bag 7 decreases slowly, the 3-liter bag 7 can be moved upward slowly, thereby keeping the liquid level in the 3-liter bag 7 in a relatively stable state, ensuring that the water pressure fluctuates within a small range and reducing the impact. In addition, the height of the installation cylinder 3 can be adjusted according to the actual situation, making it convenient for personnel to pick up and replace the 3-liter bags 7. This infusion stand can also suspend multiple 3-liter bags 7 at the same time and keep the internal liquid level stable, which is very worthy of promotion and application. Specifically: first, hang the 3-liter bag 7 on the hook 6, then adjust the installation cylinder 3 to a suitable height, adjust it to a suitable height and fix it with the adjusting member 4. When the liquid volume in the 3-liter bag 7 decreases, the automatic liquid level maintenance mechanism 8 maintains the liquid level stable, thereby ensuring that the water pressure fluctuates within a small range, and multiple 3-liter bags 7 can be suspended at the same time for infusion.

[0023] like Figure 4As shown, in some embodiments, the automatic liquid level maintenance mechanism 8 includes a mounting column 801 fixedly connected to the upper side inside the mounting cylinder 3. A fixed pulley 802 is fixedly connected to the middle of the mounting column 801. A traction rope 803 is slidably connected to the axle of the fixed pulley 802. One end of the traction rope 803 located outside the mounting cylinder 3 is fixedly connected to the movable block 5, and the other end is fixedly connected to a spring 804. The end of the spring 804 away from the traction rope 803 is fixedly connected to the inner bottom of the mounting cylinder 3. Specifically, the working principle of the automatic liquid level maintenance mechanism 8 is as follows: when the amount of liquid in the 3-liter bag 7 decreases, the weight will decrease, the spring 804 will contract, and the traction rope 803 will slide at the axle of the fixed pulley 802, thereby driving the 3-liter bag 7 to rise, reaching a new balance, and keeping the liquid level in the 3-liter bag 7 basically unchanged, thus achieving the purpose of automatically maintaining the liquid level.

[0024] like Figure 4 As shown, in some embodiments, a ring array of sleeves 9 is fixedly connected to the inner bottom of the mounting cylinder 3, and the spring 804 is located inside the sleeve 9. Specifically, the sleeve 9 can restrict the spring 804 and prevent multiple springs 804 from getting tangled together.

[0025] like Figure 4 As shown, in some embodiments, a collar 10 is fixedly connected to the top of the 3-liter bag 7, and the collar 10 is suspended on the hook 6. Specifically, the 3-liter bag 7 is suspended on the hook 6 by the collar 10 to ensure that the 3-liter bag 7 is stably suspended and easy to pick up.

[0026] like Figure 2 , Figure 3 As shown, in some embodiments, the adjusting member 4 includes adjusting holes 401 equidistantly arranged on the side wall of the support cylinder 2, and an installation hole 402 is formed on the bottom of the outer wall of the mounting cylinder 3. An adjusting screw 403 is threadedly connected inside the mounting hole 402, and the adjusting screw 403 is threadedly connected to the adjusting hole 401. Specifically, the working principle of the adjusting member 4 is as follows: slide the mounting cylinder 3 into the support cylinder 2 to a suitable position so that the adjusting hole 401 is aligned with the mounting hole 402, and then tighten the adjusting screw 403 to fix the mounting cylinder 3 in the support cylinder 2, thereby adjusting and fixing the height of the mounting cylinder 3.

[0027] like Figure 1 , Figure 2 As shown, in some embodiments, the sidewall of the mounting cylinder 3 is constructed with a ring array of mounting grooves 11, and the movable block 5 is slidably connected in the mounting groove 11. Specifically, when the traction rope 803 drives the movable block 5 to move, the movable block 5 slides in the mounting groove 11.

[0028] like Figure 2As shown, in some embodiments, the side wall of the mounting cylinder 3 is provided with a through hole 12 corresponding to the position of the traction rope 803. Specifically, when the traction rope 803 moves, the traction rope 803 slides in the through hole 12.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An infusion stand for automatically maintaining liquid level, comprising a movable base (1), characterized in that, A support cylinder (2) is fixedly connected to the top of the base (1), and an installation cylinder (3) is slidably connected inside the support cylinder (2). An adjusting component (4) is provided between the support cylinder (2) and the installation cylinder (3). A ring array of movable blocks (5) is provided on the outside of the installation cylinder (3). A hook (6) is fixedly connected to the bottom of the movable block (5). A 3-liter bag (7) is provided at the bottom of the hook (6). An automatic liquid level maintenance mechanism (8) is provided inside the installation cylinder (3).

2. The infusion stand for automatically maintaining liquid level height according to claim 1, characterized in that, The automatic liquid level maintenance mechanism (8) includes a mounting column (801) fixedly connected to the upper side inside the mounting cylinder (3). A fixed pulley (802) is fixedly connected to the middle of the mounting column (801). A traction rope (803) is slidably connected to the axle of the fixed pulley (802). One end of the traction rope (803) located outside the mounting cylinder (3) is fixedly connected to the movable block (5), and the other end is fixedly connected to a spring (804). The end of the spring (804) away from the traction rope (803) is fixedly connected to the inner bottom of the mounting cylinder (3).

3. The infusion stand for automatically maintaining liquid level height according to claim 2, characterized in that, The inner bottom of the mounting cylinder (3) is fixedly connected to a ring array of sleeves (9), and the spring (804) is located inside the sleeve (9).

4. The infusion stand for automatically maintaining liquid level height according to claim 1, characterized in that, The top of the 3-liter bag (7) is fixedly connected to a collar (10), which is suspended on the hook (6).

5. An infusion stand for automatically maintaining liquid level height according to claim 1, characterized in that, The adjusting component (4) includes adjusting holes (401) equidistantly arranged on the side wall of the support cylinder (2), and an mounting hole (402) is formed at the bottom of the outer wall of the mounting cylinder (3). An adjusting screw (403) is threadedly connected inside the mounting hole (402), and the adjusting screw (403) is threadedly connected to the adjusting hole (401).

6. An infusion stand for automatically maintaining liquid level height according to claim 1, characterized in that, The side wall of the mounting cylinder (3) is constructed with a ring array of mounting grooves (11), and the movable block (5) is slidably connected in the mounting grooves (11).

7. An infusion stand for automatically maintaining liquid level height according to claim 2, characterized in that, The side wall of the mounting cylinder (3) is provided with a through hole (12) corresponding to the position of the traction rope (803).